DK150128B

DK150128B - UNDERWATTERS FOR CAMPAIGN DEFENSE CHARGES, SOUND SENSORS OR SIMILAR DEVICES

Info

Publication number: DK150128B
Application number: DK415779AA
Authority: DK
Inventors: Guenter Beckstein; Hans Walter Unger
Original assignee: Rheinmetall Gmbh
Priority date: 1978-10-11
Filing date: 1979-10-04
Publication date: 1986-12-08
Also published as: US4311097A; DE2844188A1; IT7926152A0; ES484802A1; NL188307C; FR2438818A1; DK150128C; GB2033555B; DE2844188C2; GB2033555A; IT1163723B; FR2438818B1; NL7906909A; NO793017L; NO149791B; BE879100A; NO149791C; DE7830214U1; DK415779A; NL188307B

Description

150128 5 Opfindelsen angår en undervandstænder til kampsvømmer-forsvarsladninger, lydsignalgivere eller lignende apparater og af den i krav 11 s indledning angivne art.The invention relates to an underwater lighter for combat swarm defense charges, sound signal transmitters or similar apparatus and of the kind specified in the preamble of claim 11.

10 Fra tysk offentliggørelsesskrift nr. 26 17 755 kendes der en sikkerhedstænder til undervandssprænghoveder, ved hvilken vand kan treenge ind i det indre af sikkerhedstænderen efter fjernelse af en lukkekappe og aftrækning af en split og derved kan indtrykke en 15 membran, der på sin side er fastgjort til en hul stempelstang, der er ført forskydelig i et hylster.10 German Patent Publication No. 26 17 755 discloses a safety lighter for underwater warheads in which water can penetrate the interior of the safety lighter after removing a closure cap and pulling off a split and thereby pressing a 15 membrane which in turn is attached to a hollow piston rod slidably inserted into a sleeve.

Medens hylstret er anbragt stationært i tænderhuset, sidder det egentlige stempel, der ved sin nederste ende er udstyret med en detonator, ved hjælp af 20 en kuglespeerring fast på hylstret, indtil stempelstan-gen på grund af membranbevægelsen har bevæget sig så langt ind i hylstret, at kuglen kan undvige indefter og frigive stemplet. Ved indstødningen af stempelstangen i hylstret er der blevet spændt en trykfjeder, 25 der, når stemplet bliver frit, bevæger stemplet hurtigt nedefter sammen med detonatoren, idet tændnå-len sørger for en hurtig indledning af tændingen.While the casing is stationary in the teeth housing, the actual piston, which at its lower end is equipped with a detonator, is secured to the casing by means of a ball spear ring until the piston rod has moved so far into the casing. that the ball can dodge inside and release the piston. During the insertion of the piston rod into the casing, a compression spring has been tensioned 25, which, when the piston becomes free, moves the piston downwards rapidly with the detonator, the ignition needle providing a rapid initiation of the ignition.

Med denne kendte sikkerhedstænder er det muligt 30 at indstille tæhdtidspunktet til en forudbestemt vanddybde. Dette skal opnås ved, at trykfjederen er forspændt mere eller mindre, hvorved der f.eks. kræves et højere vandtryk på større dybde til at overvinde den forspændte trykfjeder ved hjælp af 150128 2 1 membranen. Dette er atter en forudsætning for bevægelsen af stempelstangen og stemplet i retning mod tændnålen.With this known safety tooth, it is possible to set the leakage time to a predetermined water depth. This is to be achieved by the pressure spring being biased more or less, whereby e.g. a higher water pressure at greater depth is required to overcome the biased compression spring by means of the diaphragm. This is again a prerequisite for the movement of the piston rod and the piston in the direction towards the pin.

5 Den kendte teender har dog en række tungtvejende ulemper. Således kan membranen f.eks. med enhver spids genstand gennem de store åbninger beskadiges således, at den mister sin funktionsevne. Endvidere er det muligt at indlede tændingen, efter at beskyt-10 telseskappen og splitten er fjernet, hvis tænderen støder chokagtigt mod et eller andet.5 However, the known teenager has a number of weighty disadvantages. Thus, the membrane can e.g. with any pointed object through the large openings is damaged so that it loses its functional ability. Furthermore, it is possible to initiate the ignition after the protective cap and split are removed if the igniter is shockingly against something.

Med kun en undervandssikring svarer den kendte tænder desuden ikke til de høje sikkerhedskrav, som moderne 15 tænderteknik stiller.Furthermore, with only an underwater fuse, the known teeth do not meet the high safety requirements of modern 15 teeth technology.

Fra US-patentskrift nr. 3.015.270 kendes en undervandsdetonator af den ovenfor angivne art med sikringsstempler, der er tætnet med O-ringe. Ved denne 20 teender bevæger begge sikrings stempler sig ved et forudbestemt vandtryk samtidigt ind i husets indre.US Patent No. 3,015,270 discloses an underwater detonator of the above type with fuse pistons sealed with O-rings. At this 20 teens, both fuse pistons move at a predetermined water pressure simultaneously into the interior of the housing.

Derved kan fejltændinger udløst af ydre påvirkninger ikke forhindres, hvis det ene stempel ikke rettidigt når sin forudbestemte stilling. Endvidere er denne 25 kendte tænder ikke genanvendelig, hvis den én gang er kastet i vandet, og den frembyder ingen sikring imod fejltænding efter højvandets indtræden. Der er heller ingen mulighed for at erkende den afsikrede tilstand for tænderen på udadvendende dele af tænde-3 0 ren.In this way, misfires triggered by external influences cannot be prevented if one piston does not reach its predetermined position in a timely manner. Furthermore, this 25 known teeth is not reusable if once thrown into the water and it offers no protection against malfunction after the onset of the high tide. Also, there is no possibility of recognizing the secure state of the igniter on outwardly extending parts of the igniter.

Den foreliggende opfindelse tager således sigte på at angive en tænder af den omhandlede art, ved hvilken de nævnte ulemper er undgået og hvor det 3 150128 1 sikres, at undervandssikringerne afsikres i en forudbestemt tvangsrækkefølge, som kun optræder ved korrekt anvendelse. Enhver utilsigtet rækkefølge i afsikringen skal føre til en blindindstilling i tænderen, ligesom 5 sikringerne efter en fejltænding automatisk skal vende tilbage til deres udgangsstilling, tænderen skal være genanvendelig og der skal udefra være mulighed for at erkende den afsikrede tilstand for sikringerne. Dette opnås ifølge opfindelsen ved, 10 at tænderen er udformet som angivet i krav l's kendetegnende del.The present invention thus aims to provide a teeth of the kind in which the disadvantages mentioned are avoided and where it is ensured that the underwater fuses are secured in a predetermined forced order which occurs only when used correctly. Any unintentional order in the fuse must lead to a blind setting in the ignition, just as the 5 fuses after a fault ignition should automatically return to their initial position, the igniter must be reusable and the outside must be able to recognize the secured state of the fuses. This is achieved according to the invention in that the igniter is designed as defined in the characterizing part of claim 1.

Man opnår en langt større sikkerhed, fordi der findes flere undervandssikringer, der skal afsikres i en 15 forudbestemt tvangsrækkefølge efter hinanden, som det kun vil ske, hvis tænderen virkelig skal benyttes.A far greater security is achieved because there are several underwater fuses that must be secured in a predetermined order of succession, which will only happen if the igniter is to be used.

Enhver anden villet eller uvillet rækkefølge af afsikringen fører til, at tænderen kommer i blindstilling.Any other willful or unwanted sequence of the fuse will cause the lighter to come into blind position.

2020

Ved udformning af tænderen som angivet i krav 2 opnår man en særlig sikkerhed for den rigtige funktion af tænderen.When designing the ignition as claimed in claim 2, a special assurance is obtained for the proper functioning of the igniter.

25 Ved udformning af tænderen som angivet i krav 3 opnår man god sikkerhed for en rigtig funktion af vandtrykssikringen.In designing the ignition as set out in claim 3, good safety is achieved for a proper function of the water pressure protection.

Ved udformning af tænderen som angivet i krav 4 30 opnår man en særlig sikker funktion af tænderen.When designing the ignition as claimed in claim 4 30, a particularly safe function of the igniter is achieved.

Ved udformning af tænderen som angivet i krav 5 og 8 sikrer man, at membranerne ikke kan ødelægges ved indstikning af en spids genstand.When designing the ignition as claimed in claims 5 and 8, it is ensured that the membranes cannot be damaged by insertion of a pointed object.

150128 4 1 Ved udformning af tænderen som angivet i krav 6 bliver tænderen særligt sikkert virkende.In designing the ignition as claimed in claim 6, the igniter is particularly safe to operate.

Ved udformning af tænderen som angivet i krav 7 5 opnår man, at man efter aftrækning af splitten atter kan tilvejebringe den oprindelige sikringstilstand.By designing the ignition as claimed in claim 75, it is obtained that after the pull-off of the split, the original fuse condition can be obtained again.

Den i krav 9 omhandlede mekanisme medvirker til at øge sikkerheden ved tænderens anvendelse.The mechanism of claim 9 contributes to increasing the safety of the use of the teeth.

1010

Opfindelsen forklares nærmere under henvisning til tegningen, på hvilken fig. 1 viser en udførelsesform for undervands-15 tænderen til en kampsvømmer-forsvarslad ning i hvilestilling og i længdesnit, fig. 2 samme med begge membransikringer afsikret og i længdesnit, og 20 fig. 3 et udsnit af samme undervandstænder, der på grund af mangel af en vigtig stilling, er gået i blindstilling, ' i længdesnit.The invention is further explained with reference to the drawing, in which: FIG. 1 shows an embodiment of the underwater ignition for a combat swimmer defense charge in the rest position and longitudinal section; FIG. 2 is the same with both membrane fuses secured and in longitudinal section, and FIG. 3 is a longitudinal sectional view of the same underwater teeth which, due to the absence of an important position, has been blinded.

2525

En kampsvømmer-forsvarsladning består af en undervandstænder 1 og en med denne fast forbundet sprængdel 42, der ved hjælp af et rør la og en sprængladningsbøsning 43 med samme diameter er forbundet med hinan-30 den ved hjælp af gevind. Undervandstænderen har, når man går ud fra rækkef ølgen af funktionsforløbet, først en i sideretning virkende membransikring, der er anbragt på en i forhold til tænderens 1 længdeakse 90° forsat virksom akse A. I et hulrum 3, der 5 150128 1 . er tilgængeligt udefra gennem små åbninger 2, sidder en siplade 6, der er fastlagt ved hjælp af en låsering 4 og forsynet med små åbninger 5, og bagved låseringen en membran 7, til hvilken der hører en føringsplade 5 9, som er forskydelig i et hulrum 8. Til føringspladen slutter sig en detonatorbærer 10, der er forskydelig delvist i en boring i tænderhuset lb, og som holder hele membransikringen 4 - 15 i hvilestilling ved hjælp af en trykfjeder 11, der støtter sig mod tænder-10 huset lb. Foruden en detonator 12 findes der i detonatorbæreren 10 en blindboring 13 og på afstand derfra en gennemgående boring 14, hvilke boringer er forbundet ved hjælp af en kanal 15, der er indfræset ved omkredsen af detonatorbæreren 10. Længden af forbin-15 delseskanalen 15 og afstanden mellem blindboringen 13 og den gennemgående boring 14 svarer til forskydningsvejen for detonatorbæreren 10 fra hvilestilling til tændstilling.A martial artillery defense charge consists of an underwater lighter 1 and a detonator 42 connected thereto, which is connected to each other by means of a pipe 1a and a detonator charge bush 43 of the same diameter. When starting from the order of operation, the underwater lighter first has a laterally acting diaphragm locker located on a 90 axis longitudinal axis 90 of the ignition 1 operating in a cavity 3 which is 5. is accessible from the outside through small openings 2, sits a sieve plate 6 which is fixed by means of a locking ring 4 and provided with small openings 5, and behind the locking ring a diaphragm 7 to which a guide plate 59 is slidable, cavity 8. Attached to the guide plate is a detonator carrier 10, which is partially displaceable in a bore in the ignition housing 1b, and which holds the entire diaphragm fuse 4-15 in a resting position by means of a compression spring 11 which rests against the ignition housing 10b. In addition to a detonator 12, in the detonator carrier 10 there is a blind bore 13 and, at a distance therefrom, a through bore 14, which bores are connected by means of a channel 15 milled at the circumference of the detonator carrier 10. The length of the connecting channel 15 and the distance between the blind bore 13 and the through bore 14 corresponds to the displacement path of the detonator carrier 10 from the resting position to the ignition position.

20 I rækkefølge for det yderligere funktionsforløb i undervandstænderen 1 er der en anden membransikring, der betegnes som en aksial membransikring, fordi dens virksomme akse B er anbragt i længdeaksen for tsenderen 1.20 In order for the further operation of the underwater lighter 1, there is another diaphragm fuse, which is referred to as an axial diaphragm fuse because its effective axis B is located in the longitudinal axis of the transmitter 1.

2525

Den anden membransikring 16 - 26 består af en gevindring 16, et tænder-husdæksel 17, der er sikret ved hjælp af gevindringen 16, en låsering 18 med en låseskive 19, en siplade 20 en membran 21, til hvilken 30 der hører en føringsplade 22, mod hvilken der støtter sig en trykfjeder 23, til en nøjagtig bevægelse af membranen 21 i hulrummet 24. Såvel tænder-husdseks-let 17 for vandindløbet og sipladen 20 er forsynet med små åbninger henholdsvis 17a og 20a, som er 150128 6 1 anbragt således i forhold til hinanden, at membranen 21 ikke kan beskadiges udefra gennem åbningerne 17a og 20a. Gennem alle disse dele er der ført en på den virksomme akse B liggende sikringsstift 25, 5 der skiftevis har en stor diameter, der når ind til centralboringen 1c i tænderhuset 1, men også har en lille diameter ved den indre ende, der har form af en tændnålspærrestift 25. I hviletilstand er begge membransikringer 4 - 15 og 16 - 26 afpasset 10 således, at den forreste spids på tændnålspærrestiften 26 rager så langt ind i blindboringen 13, at den netop når ned til bunden på forbindelseskanalen 15. Sikringsstiften 25 flugter med en stift 30, der når ud over tænder-husdækslet 17 og indfatte s 15 af en på dækslet 17 siddende prop 27. Ved hjælp af en split 28 bliver stifterne 25, 30 sikret i proppen 27 mod uønsket aksial forskydning. Samtidig med udtrækningen af splitten 28 springer stiften 30 påvirket af en trykfjeder ud af proppen 27, og 20 denne stift angiver dermed optisk afsikringstilstanden på tænderen 1. Ved indtrykning af stiften 30 og ved indskydning af splitten 28 kan den oprindelige sikringstilstand for membransikringen 16 - 26 atter indtages.The second diaphragm fuse 16 - 26 consists of a threaded ring 16, an teeth housing cover 17 secured by the threaded ring 16, a locking ring 18 with a locking disc 19, a sealing plate 20 and a membrane 21, to which 30 a guide plate 22 belongs. , against which a compression spring 23 is supported, for an accurate movement of the membrane 21 in the cavity 24. Both the tooth housing cover 17 for the water inlet and the sip plate 20 are provided with small openings 17a and 20a respectively, which are arranged thus relative to each other, the membrane 21 cannot be damaged from the outside through the openings 17a and 20a. Through all of these parts there is provided a locking pin 25, 5 on the effective axis B, which alternately has a large diameter, which reaches into the central bore 1c in the tooth housing 1, but also has a small diameter at the inner end, which is in the form of a spark plug pin 25. In the resting state, both diaphragm fuses 4 - 15 and 16 - 26 are aligned 10 such that the forward tip of the pin lock pin 26 protrudes so far into the blind bore 13 that it just reaches the bottom of the connecting channel 15. The fuse pin 25 flushes with a pin 30 which extends beyond the teeth housing cover 17 and includes s 15 of a plug 27 seated on the cover 17. By means of a split 28, the pins 25, 30 are secured in the plug 27 against unwanted axial displacement. At the same time as the pull-out of the splitter 28, the pin 30 influenced by a compression spring springs out of the plug 27, and this pin thus indicates the optical protection state of the ignition 1. When the pin 30 is pressed and when the splitter 28 is pushed in, the original safety position of the diaphragm fuse 16 - 26 again consumed.

2525

En anden, meget vigtig bestanddel af tænderen 1, er en tændnål 31, der er anbragt uden for midten, men akseparallelt i forhold til sikringsstiften 25 i en boring i tændhuset lb og står under indflydel-30 se af en trykf jeder 32 på en sådan måde, at spidsen på tændnålen 31, der står under forspænding, altid peger i retning hen mod detonatorbæreren 10. Da tændnålen 31 ved hjælp af en kuglespærring er indrettet til kun at fungere i afhængighed af bevægelsen 7 150128 1 af sikringsstiften 25, består der ikke den mindste fare for en uønsket tænding, så længe den anden membransikring 16 - 26 ikke er ophævet. Kuglespærringen er fremstillet ved, at en kugle 34 i en sidekanal 5 33, der ude fra gennem tænderhuset lb når ind til boringen lc for sikringsstiften 25, dels lægger sig ind foran en skulder 31a på tændnålen 31 og dels er spærret af sikringsstiften 25.Another very important component of the igniter 1 is an ignition needle 31 which is disposed outside the center but axis parallel to the locking pin 25 in a bore in the ignition housing 1b and is under the influence of a pressure spring 32 on such a in that the tip of the pin 31, which is under bias, always points in the direction towards the detonator carrier 10. Since the pin 31 is arranged by means of a ball lock to function only in response to the movement 7 of the fuse pin 25, there is no the least danger of an undesired ignition as long as the second diaphragm fuse 16 - 26 is not removed. The ball lock is made in that a ball 34 in a side channel 5 33, which extends from outside of the ignition housing 1b to the bore 1c of the locking pin 25, partly lays in front of a shoulder 31a of the pin 31 and partly is blocked by the locking pin 25.

10 Sidekanalen 33 er iøvrigt tilgængelig gennem en åbning 35 for det vand, der omgiver tænderen 1, over en i sidekanten 33 indsat prop af filt 36 eller et andet egnet materiale, der udmærker sig ved, at det er vanskeligt gennemtrængeligt for vand, 15 men' let gennemtrængeligt for luft.The side channel 33 is otherwise accessible through an opening 35 for the water surrounding the igniter 1, over a plug 36 of felt 36 inserted in the side edge 33 or other suitable material, which is characterized by being difficult to penetrate water, 15 but 'easily permeable to air.

Mellem de to membransikringer 4 - 15 og 16 - 26 findes et større hulrum, der tjener som et udligningsrum 38, der nedsætter lufttrykket i det indre af 20 tændhuset lb. Udligningsrummet er over en forbindelseskanal 39 tilsluttet til den centrale boring lc i tænderhuset lb.Between the two diaphragm fuses 4 - 15 and 16 - 26 there is a larger cavity which serves as a compensating chamber 38 which reduces the air pressure in the interior of the ignition housing 1b. The compensating space is connected over a connecting channel 39 to the central bore 1c in the ignition housing 1b.

Lige over for tændnålboringen er der anbragt en 25 lille tændoverfører 40, så en tændingsforstærkerlad-ning 41, til hvilken der slutter sig en sprængdel 42 med sprængladninger 42a, der f.eks. består af pressestykker. Spraaiglcdningsbøsningen 43 er skruet fast mod en gevindring 44, der på sin side umiddelbart 30 neden under røret la er skruet på en gevindansats på tænderhuset lb.Directly opposite the spark plug bore is provided a small ignition transmitter 40, then an ignition amplifier charge 41 to which terminates a burst portion 42 with burst charges 42a, e.g. consists of press pieces. The splice sleeve 43 is screwed against a threaded ring 44, which in turn is immediately 30 below the pipe 1a screwed onto a threaded housing on the ignition housing 1b.

Undervandstænderen virker som følger: 8 150128 1 Før genstanden, hvori tænderen er anbragt, kastes i vandet, trækkes splitten 28 ud, idet samtidig også stiften 30 springer omtrent 3 mm ud fra proppen 27. Dermed er det dels optisk angivet, at genstanden 5 er klar til at kastes ud, og dels bliver sikringsstiften 25 frigivet, så at den ved hjælp af trykfjederen 23 kan rykkes ud af den blinde boring 13 i detonatorbæreren 10. Først herved får detonatorbæreren 10 en mulighed for at kunne bevæges ved hjælp af membran-10 sikringen på siden. Det forudsættes, at vanddybden er mindst 5 meter, når genstanden efter aftrækning af splitten 28 kastes i vandet. Så vil vandet såvel gennem de små åbninger 2 og 5 i sidevandtrykssikringen 4-15 som også gennem åbningerne 17a i tænderhusdæks-15 let 17 foran den aksiale vand tryks sikring 16 - 26 udfylde rummet foran de to membraner 7 og 21, idet den kraft fra trykfjederen 11, der modvirker vandtrykket, og også lufttrykket i det indre af tænderhuset lb, er afpasset således, at den første membransikring 20 bliver udløst, når genstanden er dykket ned til omkring 2 m vanddybde.The underwater lighter works as follows: 8 Before the article in which the lighter is placed is thrown into the water, the splitter 28 is pulled out, while at the same time the pin 30 protrudes approximately 3 mm from the plug 27. Thus, it is optically indicated that the object 5 is ready to be ejected, and secondly, the securing pin 25 is released so that it can be pulled out of the blind bore 13 of the detonator carrier 10 by means of the compression spring 23. Firstly, the detonator carrier 10 is allowed to move by means of membrane-10. the fuse on the side. It is assumed that the depth of water is at least 5 meters when the object is pulled into the water after pulling the split 28. Then, through the small openings 2 and 5 of the sidewall pressure fuse 4-15 as well as through the openings 17a in the tee housing cover 15, the water will fill the space in front of the two membranes 7 and 21 as well as the force from the pressure spring 11, which counteracts the water pressure, and also the air pressure in the interior of the ignition housing 1b, is adapted so that the first diaphragm fuse 20 is released when the object is submerged to about 2 m water depth.

Dette betyder, at membranen 7 trykkes ind i hulrummet 8, og at detonatorbæreren 10 forskydes så langt 25 mod kraften fra trykfjederen 11, at tændnålspærrestif-ten 26 ved at glide langs bunden af forbindelseskanalen 15 flugter med den gennemgående boring 14. Derved kommer detonatoren 12 til at ligge foran spidsen på tændnålen 31. Ved en yderligere nedsynkning af 30 genstanden bliver kraften fra trykfjederen 23 i den anden membransikring 16 - 26 og også fra indertrykket i den indesluttede luft omtrent i en dybde på 4-5 m overvundet så vidt, at tændnålspærrestiften 26 trænger dybt ind i den gennemgående boring 14, 9 150128 1 hvorved kuglen 34, fig. 2, kan undvige så langt, at tændnålen 31 under virkningen fra trykfjederen 32 drives ind i detonatoren 12, hvorved tændingen af tændkæden 40 og 41 bliver indledt. Tænderen har 5 en blindindstillingsmekanisme for det tilfælde, at den er blevet kastet ud i for lavt vand. For at en sådan tænder ikke skal behandles som et farligt objekt ved indtrædende ebbe, og for at en tænding ikke skal blive indledt ved stigende flod på et 10 uønsket tidspunkt på grund af det tiltagende vandtryk, bliver begge membransikringer 4 - 15 og 16 - 26 efter en kort hviletid i vandet atter bragt til sikringsstilling ved, at der gennem filtproppen kan treenge vand ind i tænderen. Herved vil indertryk-15 ket og ydertrykket i tænderen blive udlignet, og fjedrene 11 og 23 stiller de to sikringer tilbage til udgangsstilling.This means that the diaphragm 7 is pressed into the cavity 8 and that the detonator carrier 10 is displaced so far 25 against the force of the compression spring 11 that the pinion pin 26 by sliding along the bottom of the connecting channel 15 aligns with the through bore 14. This results in the detonator 12 For a further immersion of the article, the force of the compression spring 23 in the second diaphragm fuse 16 - 26 and also from the internal pressure in the enclosed air is approximately overcome to a depth of 4-5 m to the extent that the pin locking pin 26 penetrates deeply into the through bore 14, 9, whereby the ball 34, FIG. 2, can avoid so far that, under the action of the compression spring 32, the ignition needle 31 is driven into the detonator 12, thereby initiating the ignition of the ignition chain 40 and 41. The lighter has a blind setting mechanism in case it has been thrown into too low water. In order that such a tooth should not be treated as a dangerous object at the onset of ebb, and so that an ignition should not be initiated by rising river at an undesirable time due to the increasing water pressure, both membrane fuses 4 - 15 and 16 - 26 after a short period of rest in the water brought back to safety position by the fact that through the felt plug water can enter the igniter. This will equalize the internal pressure and the external pressure in the ignition, and the springs 11 and 23 return the two fuses to the starting position.

En anden, i fig. 3 vist blindstilling af genstanden 20 indtræder, når det ved montagen er blevet glemt at indbygge en vigtig del, f.eks. kuglen 34. Derved kan spidsen på tændnålen 31 slå an mod den forreste afsatsdel på detonatorbæreren 10 og derved samtidig forhindre en fremadbevægelse af den første membransik-25 ring 16 - 26, så at der ikke kan ske en tænding.Another, in FIG. 3, the blind position of the object 20 occurs when it has been forgotten to incorporate an important part, e.g. The ball 34. In this way, the tip of the ignition needle 31 can engage the front landing portion of the detonator carrier 10, thereby preventing a forward movement of the first membrane fuse 16-26 so that no ignition can occur.

Claims

150128

1. Underwater teeth for combat float defense defenses, sound signal transmitters or similar apparatus, which underwater teens comprise a first and a second water pressure dependent and spring loaded diaphragm fuse which can be secured by a split, which fuses are arranged at two 90 ° relative to mutually operative axes (A and B) in such a way that a detonator (12), after disassembly of the second diaphragm fuse (16 - 26), is slidable into the ignition position and that an ignition needle (31) upon release of the first diaphragm fuse (4 - 15) is displaceable to the detonator (12), characterized in that the ignition needle (31) is arranged in a bore in the ignition housing (1b), in which bore also a spring (32) for the ignition needle (31) is arranged, and by the second diaphragm fuse (16 - 26) controls a locking pin (25) arranged parallel to the ignition needle (31), which can be secured by a split (28), which fuse pin (25) partly cooperates with the ignition pin (25). 31) and partly with the detonator carrier (10) on the first diaphragm fuse (4 - 15) in such a way that the water pressure exerted on the diaphragms (7, 21) in the two diaphragm fuses 25 (4 - 15 and 16 - 26) can counteract the pressure of the air entrained in pure and diaphragm pressure springs (11, 23), so that both diaphragm fuses (4 - 15 and 16 - 26) can be removed at different water depths and thus trigger their function successively, so that the ignition needle (31) 30 can only be released when the detonator (12) is of the first releasable, first diaphragm fuse (4 - 15) is offset to the ignition position facing the needle. 150128

1 PATENT REQUIREMENT

Underwater teeth according to claim 1, characterized in that between the two diaphragm fuses (4 - 15 and 16 - 26) in the ignition housing (1b) there is a compensating space (38) arranged to be able to equalize the air pressure in the interior. of the ignition housing (lb), which compensating space (38) over a connecting channel (39) is connected to the central bore (lc) of the ignition housing (lb).

Underwater teeth according to claims 1 and 2, characterized in that the first releasable, first diaphragm fuse, with its transverse axis longitudinal axis of the transmitter, comprises an active plate (6) inserted in front of the diaphragm (7) and a detonator carrier. 15 (10) accommodating the detonator (12), the detonator carrier (10) having the diaphragm (7) being held in locking position by a compression spring (11).

Underwater teeth according to claims 1-3, characterized in that an axial blind bore (13) is provided between the diaphragm (7) and the detonator (12) and at a distance therefrom a through bore (14) in the detonator carrier (10). which bores are connected by means of a channel (15) milled at the circumference 25 of the detonator carrier (10) and the length of which is adjusted to correspond to the displacement path of the detonator carrier (10) from the rest position to the ignition position.

Underwater teeth according to claims 1-4, characterized in that the water inlet for the first diaphragm fuse (4 - 15) consists of small openings (2) distributed on the perimeter of the teeth housing (1b). 150128

Underwater teeth according to claims 1 and 2, characterized in that the last releasable second diaphragm fuse (16 - 26) with its effective axis (B) is arranged about the longitudinal axis of the igniter (1) and 5 consists of a front diaphragm (7). ) mounted sealing plate (6), a compression spring (11) supporting the teeth housing (lb), and a locking pin (25) which coincides with the longitudinal axis and whose free end can act as a pin locking pin (26) in the blind bore 10 (13) at the level of the channel (15) of the detonator carrier (10), preferably the multi-stage locking pin (25) is arranged in a housing bore (1c) of the igniter (1) and secured by a retractable split (28), which penetrates through a plug (27) which sits on the teeth housing cover (17).

Underwater teeth according to claim 6, characterized in that a spring actuated pin (30) adapted to project in front of the plug (27) 20 and optically indicate the protection state of the igniter (1), at the same time as the pull-out of the split (28). is releasable so that the original fuse condition and the second diaphragm fuse (16 - 26) fuse position can be obtained by pressing the pin (30) and by sliding the splitter (28) again.

Underwater teeth according to claims 6 and 7, characterized in that a water inlet for the second diaphragm fuse (16 - 26) consists of small openings 30 (17a and 20a) in the teeth housing cover (17) and the sip plate (20), the openings ( 17a and 20a) are relatively small and positioned in relation to each other.

9. Underwater teeth according to claim 6,